X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fvertexformat.cpp;h=146fc68095be688e4c974c3aefbccf89c71b0b7e;hb=40c364b04084d11573a9ff9f7be6f1c4cc521f4b;hp=65b276baa7115e5c5482fc0b39ac0a1ed4f85cb4;hpb=ba5c731b8aa6430bb10e38848d42d8bfb59694a6;p=libs%2Fgl.git

diff --git a/source/vertexformat.cpp b/source/vertexformat.cpp
index 65b276ba..146fc680 100644
--- a/source/vertexformat.cpp
+++ b/source/vertexformat.cpp
@@ -1,4 +1,4 @@
-#include <cstring>
+#include <algorithm>
 #include <msp/strings/format.h>
 #include <msp/strings/lexicalcast.h>
 #include <msp/strings/utils.h>
@@ -24,11 +24,7 @@ VertexFormat::VertexFormat(VertexComponent c):
 VertexFormat::VertexFormat(const VertexFormat &f):
 	data(0)
 {
-	if(f.data)
-	{
-		data = new unsigned char[(f.data[0]&~7)+8];
-		memcpy(data, f.data, f.data[0]+1);
-	}
+	*this = f;
 }
 
 VertexFormat &VertexFormat::operator=(const VertexFormat &f)
@@ -37,7 +33,7 @@ VertexFormat &VertexFormat::operator=(const VertexFormat &f)
 	if(f.data)
 	{
 		data = new unsigned char[(f.data[0]&~7)+8];
-		memcpy(data, f.data, f.data[0]+1);
+		copy(f.data, f.data+f.data[0]+1, data);
 	}
 	else
 		data = 0;
@@ -56,10 +52,10 @@ VertexFormat VertexFormat::operator,(VertexComponent c) const
 	if(r.data)
 	{
 		const unsigned char n = ++r.data[0];
-		if((n&7)==7)
+		if((n&7)==0)
 		{
-			unsigned char *newdt = new unsigned char[n+9];
-			memcpy(newdt, r.data, n);
+			unsigned char *newdt = new unsigned char[n+8];
+			copy(r.data, r.data+n, newdt);
 			delete r.data;
 			r.data = newdt;
 		}
@@ -81,9 +77,7 @@ VertexFormat VertexFormat::operator,(unsigned i) const
 		throw invalid_operation("VertexFormat::operator,");
 	VertexFormat r = *this;
 	unsigned char *c = r.data+r.data[0];
-	if((*c<TEXCOORD1 && i>0) || (*c<ATTRIB1 && i>=8) || i>=53)
-		throw invalid_argument("VertexFormat::operator,");
-	*c += i*4;
+	*c = make_indexed_component(static_cast<VertexComponent>(*c), i);
 
 	return r;
 }
@@ -96,12 +90,9 @@ unsigned VertexFormat::stride() const
 	return s;
 }
 
-int VertexFormat::offset(VertexComponent comp, unsigned index) const
+int VertexFormat::offset(VertexComponent comp) const
 {
-	if((comp<TEXCOORD1 && index>0) || (comp<ATTRIB1 && index>=8) || index>=53)
-		throw out_of_range("VertexFormat::offset");
-
-	unsigned type = get_component_type(comp)+index;
+	unsigned type = get_component_type(comp);
 	unsigned size = get_component_size(comp);
 	unsigned offs = 0;
 	for(const unsigned char *i=begin(); i!=end(); ++i)
@@ -120,6 +111,23 @@ int VertexFormat::offset(VertexComponent comp, unsigned index) const
 	return -1;
 }
 
+VertexComponent make_indexed_component(VertexComponent comp, unsigned index)
+{
+	if(comp>=TEXCOORD1 && comp<=TEXCOORD4)
+	{
+		if(index>=4)
+			throw out_of_range("make_indexed_component");
+	}
+	else if(comp>=ATTRIB1 && comp<=ATTRIB4)
+	{
+		if(index>=24)
+			throw out_of_range("make_indexed_component");
+	}
+	else
+		throw invalid_argument("make_indexed_component");
+	return static_cast<VertexComponent>(comp+index*4);
+}
+
 void operator>>(const LexicalConverter &conv, VertexComponent &c)
 {
 	const string &str = conv.get();